Ad-Hoc Conference Calls not working

[Solomon Rufus Kavala]

Team,

We have got CUCM 7.1.3.32900-4 at one of our sites. We have been reported that Conference calls are not working since morning. I have verified the Media Resource Group and found all the resources were selected (Software CFB & Hardware CFB). Then i have restarted the IP Voice Media Streaming service from Unified Serviceability. But no luck. So as soon as soon as we hit Confrn softkey, newly added call is getting dropped. By the way I have checked Conference in Service Parameters and found to be good. CUCM has been restarted 356 days before. Need to get Conference get going at this site. Please find the Conifg below in my voice gateway.

sccp local GigabitEthernet0/0
sccp ccm 10.X.X.X identifier 1 priority 1 version 7.0 
sccp
!
sccp ccm group 2
 bind interface GigabitEthernet0/0
 associate ccm 1 priority 1
 associate profile 2 register Hardware_CFB
!
sccp ccm group 1
 description transcoding resources
 bind interface GigabitEthernet0/0
 associate ccm 1 priority 1
 associate profile 1 register au-sydney
!
dspfarm profile 1 transcode  
 description transcoding resources for internal conferences and ACD calls
 codec g711ulaw
 codec g711alaw
 codec g729ar8
 codec g729abr8
 maximum sessions 8
 associate application SCCP
!
dspfarm profile 2 conference  
 description Conference resources for internal conferences and ACD calls
 codec g711ulaw
 codec g711alaw
 codec g729ar8
 codec g729abr8
 codec g729r8
 codec g729br8
 maximum sessions 2
 associate application SCCP

Need your expert advice, how to proceed further.

Thanks,

Solomon

[Mohammed al Baqari]

Hi,

From your router share the output of sh sccp and show dspfarm all

[Solomon Rufus Kavala]

Hi Mohammed,

Please find the output. My Question over here is, even internal calls fail as soon as I initiate Conference, which makes me annoy.

AU-Sydney-VGW01#sh sccp
SCCP Admin State: UP
Gateway Local Interface: GigabitEthernet0/0
        IPv4 Address: 10.204.14.5
        Port Number: 2000
IP Precedence: 5
User Masked Codec list: None
Call Manager: 10.204.14.11, Port Number: 2000
                Priority: 1, Version: 7.0, Identifier: 1

Transcoding Oper State: ACTIVE - Cause Code: NONE
Active Call Manager: 10.204.14.11, Port Number: 2000
TCP Link Status: CONNECTED, Profile Identifier: 1
Reported Max Streams: 16, Reported Max OOS Streams: 0
Supported Codec: g711ulaw, Maximum Packetization Period: 30
Supported Codec: g711alaw, Maximum Packetization Period: 30
Supported Codec: g729ar8, Maximum Packetization Period: 60
Supported Codec: g729abr8, Maximum Packetization Period: 60
Supported Codec: rfc2833 dtmf, Maximum Packetization Period: 30
Supported Codec: rfc2833 pass-thru, Maximum Packetization Period: 30
Supported Codec: inband-dtmf to rfc2833 conversion, Maximum Packetization Period: 30

Conferencing Oper State: ACTIVE - Cause Code: NONE
Active Call Manager: 10.204.14.11, Port Number: 2000
TCP Link Status: CONNECTED, Profile Identifier: 2
Reported Max Streams: 16, Reported Max OOS Streams: 0
Supported Codec: g711ulaw, Maximum Packetization Period: 30
Supported Codec: g711alaw, Maximum Packetization Period: 30
Supported Codec: g729ar8, Maximum Packetization Period: 60
Supported Codec: g729abr8, Maximum Packetization Period: 60
Supported Codec: g729r8, Maximum Packetization Period: 60
Supported Codec: g729br8, Maximum Packetization Period: 60
Supported Codec: rfc2833 dtmf, Maximum Packetization Period: 30
Supported Codec: rfc2833 pass-thru, Maximum Packetization Period: 30
Supported Codec: inband-dtmf to rfc2833 conversion, Maximum Packetization Period: 30
TLS : ENABLED

AU-Sydney-VGW01#sh dspfa
AU-Sydney-VGW01#sh dspfarm all
Dspfarm Profile Configuration

 Profile ID = 1, Service = TRANSCODING, Resource ID = 1  
 Profile Description : transcoding resources for internal conferences and ACD calls 
 Profile Service Mode : Non Secure 
 Profile Admin State : UP 
 Profile Operation State : ACTIVE 
 Application : SCCP   Status : ASSOCIATED 
 Resource Provider : FLEX_DSPRM   Status : UP 
 Number of Resource Configured : 8 
 Number of Resource Available : 8
 Codec Configuration 
 Codec : g711ulaw, Maximum Packetization Period : 30 
 Codec : g711alaw, Maximum Packetization Period : 30 
 Codec : g729ar8, Maximum Packetization Period : 60 
 Codec : g729abr8, Maximum Packetization Period : 60
Dspfarm Profile Configuration

 Profile ID = 2, Service = CONFERENCING, Resource ID = 2  
 Profile Description : Conference resources for internal conferences and ACD calls 
 Profile Service Mode : Non Secure 
 Profile Admin State : UP 
 Profile Operation State : ACTIVE 
 Application : SCCP   Status : ASSOCIATED 
 Resource Provider : FLEX_DSPRM   Status : UP 
 Number of Resource Configured : 2 
 Number of Resource Available : 2
 Codec Configuration 
 Codec : g711ulaw, Maximum Packetization Period : 30 , Transcoder: Not Required 
 Codec : g711alaw, Maximum Packetization Period : 30 , Transcoder: Not Required 
 Codec : g729ar8, Maximum Packetization Period : 60 , Transcoder: Not Required 
 Codec : g729abr8, Maximum Packetization Period : 60 , Transcoder: Not Required 
 Codec : g729r8, Maximum Packetization Period : 60 , Transcoder: Not Required 
 Codec : g729br8, Maximum Packetization Period : 60 , Transcoder: Not Required

SLOT DSP VERSION  STATUS CHNL USE   TYPE    RSC_ID BRIDGE_ID PKTS_TXED PKTS_RXED

0    2   26.7.0   UP     N/A  FREE  xcode  1      -         -         -        
0    2   26.7.0   UP     N/A  FREE  xcode  1      -         -         -        
0    2   26.7.0   UP     N/A  FREE  xcode  1      -         -         -        
0    2   26.7.0   UP     N/A  FREE  xcode  1      -         -         -        
0    2   26.7.0   UP     N/A  FREE  xcode  1      -         -         -        
0    2   26.7.0   UP     N/A  FREE  xcode  1      -         -         -        
0    2   26.7.0   UP     N/A  FREE  xcode  1      -         -         -        
0    2   26.7.0   UP     N/A  FREE  xcode  1      -         -         -        
0    2   26.7.0   UP     N/A  FREE  conf   2      -         -         -        
0    2   26.7.0   UP     N/A  FREE  conf   2      -         -         -        

Total number of DSPFARM DSP channel(s) 10

[Mohammed al Baqari · Accepted solution]

Is 10.204.14.5 your CUCM server IP? How many conference bridges due you have in your MRG?

Try to keep one at a time and test.

What codec is being used by all participants. Any transcoding required

[Solomon Rufus Kavala]

10.204.14.11 is CUCM IP and 10.204.14.5 is MGCP Gateway.

Currently in the selected MRG, I have included both Software and Hardware Conference Bridges.

Basically CUCM has been deployed in Australia. 30 odd Cisco 6921 IP Phones registered to CUCM in AU has been placed in Thane, Mumbai. Currently Issue is happening at Thane. So with in Thane, we are using G711 and Between Sydney & Thane G729. We do have Hardware Transcoder included in to the MRG.

As you have mentioned I will include one CFB at a time.

Thanks,

Solomon.

[Solomon Rufus Kavala]

Finally Conference Call worked, after I remove Software Conference Bridge from MRG. Currently only Hardware CFB has been included. I will let this setup remain for the next couple of days. But problem over with this is, I have configured only two sessions for this Profile in Gateway. So that at any point of time, only two Conference Calls can be made possible, where as with Software CFB we can have up to 48 Conference Calls as per Service Parameters. Please share some light on this.

Regards,

Solomon.